22226results about How to "Easy to assemble" patented technology

The invention discloses a motor assembly, a thrust assembly and an aircraft, and relates to the technical field of aircrafts. The motor assembly comprises an outer rotor, one axial end of the outer rotor is a mechanical coupling end, and the other axial end of the outer rotor is an open end; at least part of the inner stator extends into the outer rotor from the open end to be rotationally connected with the outer rotor, and the inner stator is provided with a central shaft hole penetrating through the inner stator in the axial direction of the inner stator; the rear cover is arranged on the side, away from the mechanical connection end, of the inner stator so as to cover the central shaft hole. The cooling assembly is arranged on the side, away from the inner stator, of the rear cover; a part of the transmission assembly is arranged in the central shaft hole and is in transmission connection with the outer rotor, and the other part of the transmission assembly penetrates through the rear cover and is in transmission connection with the cooling assembly, so that the outer rotor drives the cooling assembly through the transmission assembly. According to the motor assembly, an independent driving assembly required by the cooling assembly is omitted, so that the overall weight of the motor assembly is optimized.

The invention relates to the technical field of batteries, in particular to a battery cell cover plate and a battery cell. The battery cell cover plate comprises a cover plate main body provided with a mounting hole; the pole column is arranged in the mounting hole, the pole column comprises a column body part and a first plate body part, the first plate body part is arranged at one end, facing the outside of the battery cell, of the pole column and is formed by outwards protruding the side wall of the column body part, and the distance between the side wall of the first plate body part and the side wall of the column body part is L; the distance between the side wall of the cylinder part and the hole wall of the mounting hole is M, and L is greater than M; and the first insulating part is clamped between the first plate body part and the cover plate main body. According to the invention, a riveting block structure in a traditional battery cell cover plate is canceled, so that the first plate body part on the pole directly crimps the first insulating part on the cover plate main body, thereby facilitating assembly and reducing cost; the occupied space and the weight of the cover plate are reduced, and the energy density of the battery cell is improved. In addition, L is limited to be larger than M, the situation that the pole falls off under the impact of external force is avoided, and therefore the safety performance of the battery cell cover plate is improved.

The invention provides an anchor rod with a barb structure and a construction method.The anchor rod comprises a hollow anchor rod body, a core rod arranged in the anchor rod body and a barb part arranged on the outer side of the anchor rod body, and the length direction of the core rod is the same as that of the anchor rod body; the multiple barb parts are arranged in the length direction of the anchor rod body at intervals, a plurality of barb pieces are arranged on each barb part at intervals, and the barb pieces are obliquely arranged on the anchor rod body. And barb pieces are arranged at the positions, corresponding to the barb parts, of the core rod. According to the anchor rod with the barb structure and the construction method, the core rod is arranged in the hollow anchor rod body, and the barb pieces and the barb pieces are matched to form a special composite stress form, so that the overall pulling resistance of the anchor rod is effectively improved, the construction cost is reduced, and the construction period is shortened; and as the designed length of the anchor rod is obviously shortened, disturbance to the surrounding environment is reduced, and pollution to the environment is reduced.

The utility model provides an energy storage converter and an energy storage system with the same, and the energy storage converter comprises a cabinet which is provided with an accommodation cavity; the plurality of power elements are arranged in the accommodating cavity; the liquid cooling plate is internally provided with a first liquid cooling channel, the first liquid cooling channel is used for circulation of cooling liquid, and the liquid cooling plate can cool the plurality of power elements; the heat exchanger comprises heat exchange fins and a second liquid cooling channel arranged in heat exchange with the heat exchange fins, the second liquid cooling channel is used for circulation of cooling liquid, the heat exchanger cools the multiple power elements through the heat exchange fins, and the first liquid cooling channel and the second liquid cooling channel are communicated or independently arranged. Through the technical scheme provided by the invention, the problem of poor heat dissipation effect of the energy storage converter in the prior art can be solved.

The invention discloses an automobile seat automatic adjusting sliding rail and an automobile seat thereof, and belongs to the technical field of automobile parts. Comprising a static sliding rail, and the static sliding rail comprises a static sliding rail fixing bottom plate, a static sliding rail front side wall and a static sliding rail rear side wall; a movable sliding rail front edge folding groove and a movable sliding rail rear edge folding groove are formed in the movable sliding rail, and the bottoms of the left end and the right end of the movable sliding rail are each provided with a pair of Z-direction gap eliminating idler wheels; the seat basin connecting plate is connected to the upper part of the movable sliding rail; the screw rod is arranged in the static slide rail cavity; the movable sliding rail automatic displacement driving mechanism is matched with the seat basin connecting plate, the movable sliding rail and the screw rod; the device is characterized in that front clearance eliminating mechanisms are arranged at the left end and the right end of the building wall corresponding to the front edge folding groove of the movable sliding rail respectively, and rear clearance eliminating mechanisms are arranged at the left end and the right end of the building wall corresponding to the rear edge folding groove of the movable sliding rail respectively; a pair of movable sliding rail guide mechanisms is arranged on the downward side of the middle of the movable sliding rail. The device has the advantages of simplifying the overall structure and facilitating manufacturing and assembling; the all-around excellent anti-backlash effect is embodied; the service life is long.

The utility model provides a special zero-point positioning clamp for an aero-engine moving blade, which is used for positioning and clamping the aero-engine moving blade and comprises a clamp body, a positioning piece, a deformation acting piece and a zero-point positioning assembly, a mortise with at least the top, the front and the back opened is arranged on the clamp body, a deformation groove is arranged on one side of the mortise, and the zero-point positioning assembly is arranged in the deformation groove. The deformation acting piece is connected with the deformation part and the clamp body in a matched mode, and the deformation acting piece drives the deformation part to deform so as to clamp and loosen the blade tenon. The zero point positioning assembly comprises a positioning piece and a blind rivet, and the positioning piece and the blind rivet are installed at the bottom of the clamp body in a positioning mode. According to the scheme, assembling is easy, using is convenient, stable clamping of the aero-engine moving blade and the quick-changing function and the zero-point positioning function applied to an automatic production line can be achieved, it is not needed to determine whether the position of the blade is correct or not every time of metering, manpower consumption is reduced, labor efficiency is improved, and the requirement of the automatic production line is met.

The invention belongs to the technical field of automobile suspensions, and particularly relates to a gas damping independent air spring which comprises a base, an air bag, a piston and a protective cylinder. The open end of the piston is connected with the upper end of the air bag; the piston is provided with a partition plate dividing the gas containing cavity into a main gas chamber and an auxiliary gas chamber, the main gas chamber is located on the side, close to the gas bag, of the partition plate, and the auxiliary gas chamber is located in the piston cavity. A compression throttling hole and a stretching throttling hole which are communicated with the main air chamber and the auxiliary air chamber are formed in the partition plate; a first elastic valve plate for sealing the compression throttling hole is arranged in the auxiliary air chamber, and a second elastic valve plate for sealing the stretching throttling hole is arranged in the main air chamber. The pressure difference between the main air chamber and the auxiliary air chamber is used for controlling opening and closing of the compression throttling hole and the stretching throttling hole, so that effective air containing cavities of the air spring are rapidly switched, and the rigidity of the air spring is adjusted in time. The air flow is limited through the compression throttling hole and the stretching throttling hole, and damping force is provided for the telescopic movement of the air spring.

The invention provides a spliced frame structure for a flat plate type satellite, and belongs to the technical field of satellite structures. The problems that an existing satellite frame is high in production cost and difficult to produce in batches are solved. The beam unit comprises an X-axis beam unit, a Y-axis beam unit and an inclined beam unit, the X-axis beam unit and the Y-axis beam unit are arranged in an orthogonal mode, an included angle is formed between the inclined beam unit and the X-axis beam unit, the X-axis beam unit comprises a first X-axis beam, a second X-axis beam, a third X-axis beam and a fourth X-axis beam, and the X-axis beam unit comprises a first X-axis beam, a second X-axis beam, a third X-axis beam and a fourth X-axis beam. The Y-axis beam unit comprises a first Y-axis beam, a second Y-axis beam and a third Y-axis beam, the oblique beam unit comprises a first oblique beam and a second oblique beam, and the splicing unit comprises a Y-axis separation mechanism connector and an X-axis separation mechanism connector. The frame structure is mainly used for a flat plate type satellite.

The present invention provides a device and method for real-time monitoring of the movement trajectory of the rock layer on the top of a mine, and relates to the technical field of monitoring the movement of the rock layer on the top of a mine. The device for real-time monitoring of the movement trajectory of the rock layer on the top of a mine of the present invention has fewer parts and components, and the assembly process is simple and rapid when used on site. It can be assembled and used according to the actual length of the monitoring borehole in the monitoring of the top of a mine; the device for real-time monitoring of the movement trajectory of the rock layer on the top of a mine of the present invention has a simple structure, is easy to process and manufacture, uses fewer precision instruments inside, and the cost of the entire device is relatively low, which can reduce the investment cost of mine monitoring; the device for real-time monitoring of the movement trajectory of the rock layer on the top of a mine of the present invention is used to monitor the rock layer on the top of a mine in real time, and can monitor the movement trajectory of the roof rock layer in real time, accurately, and continuously, and provide more detailed rock layer information for the prevention and control of disasters such as mine pressure, rock layer control, and rock burst.

The utility model provides a battery cell top cover and a battery, and relates to the technical field of lithium batteries. Specifically, the battery cell top cover comprises a cover plate, an upper pole and a lower pole, wherein the cover plate is provided with pole holes for accommodating the upper pole and the lower pole; the upper pole partially protrudes downwards to form a first groove, the lower pole partially protrudes upwards to form a second groove, and the bottom wall of the first groove is connected with the bottom wall of the second groove. Based on the arrangement of the first groove and the second groove, the weights of the upper pole and the lower pole are respectively reduced, and certain materials of the upper pole and the lower pole are saved, so that the lightweight design of the battery cell top cover is realized, and the manufacturing cost of the battery cell top cover is reduced at the same time.

The invention relates to the field of batteries, in particular to a preparation process of a high-capacity battery. The problem that an existing large-capacity battery sharing pipeline assembly is difficult to assemble is solved. Comprising the following steps: processing a shell, assembling a semi-finished shell, prefabricating a single battery, loading the prefabricated single battery into the semi-finished shell, sealing, unpacking and connecting in parallel. According to the invention, the plurality of capacity-graded and sorted single batteries with the sealing assemblies are arranged in the semi-finished product shell with the electrolyte sharing cavity, the cylinder is sealed by the second cover plate, and the sealing assemblies are opened through the unpacking process, so that the electrolyte sharing cavity is communicated with the electrolyte areas of the inner cavities of the single batteries, and the capacity-graded and sorted single batteries are separated. And the electrolyte of each single battery is shared to guarantee the consistency of each single battery, so that the cycle life of the high-capacity battery is prolonged. And the electrolyte sharing cavity is formed on the first cover plate, so that insertion is not needed, the requirements on processing precision and assembling precision are low, the assembling process is simple, and the processing difficulty of the large-capacity battery with the sharing system is reduced.

The invention relates to a sewage tank and a cleaning system. The sewage tank comprises a tank cover and a tank body, the shunting assembly is connected with the box cover and is provided with a first part and a second part, a separation part is formed between the first part and the second part, and the separation part is in sealing contact with the box body and divides the box body into a first cavity and a second cavity; wherein the first part is positioned in the first cavity and comprises a sewage inlet; the second part is located in the second cavity and comprises a circulation opening and a first channel section of a sewage pumping channel; external sewage can flow into the first cavity through the sewage inlet and enter the second cavity through the circulation opening, and sewage in the second cavity can enter the first channel section through the circulation opening. By providing the sewage tank meeting multiple requirements, the multifunctional arrangement of the cleaning system can be supported, and the functions of the cleaning system are more complete.

The invention relates to the technical field of motor assembly, in particular to a high-adjustment motor stator subassembly assembly tool and method. Comprising a base, a first fixing unit, a second fixing unit and a butt joint mechanism. According to the device, firstly, the shell is centered and clamped through the first fixing unit, the two magnetic shoes are clamped and fixed through the second fixing unit, in the continuous left moving process of the sliding frame, firstly, the guide columns move and are inserted into the guide cylinders, and first-time guiding of follow-up magnetic shoe moving and assembling is achieved; and then the leftward movement process of the magnetic shoe is guided again in the mode that a guide rod is inserted into a butt joint hole, so that the accuracy of the placement position of the magnetic shoe in the assembling process and the stability in the assembling process are improved, and the problem that the placement position of the magnetic shoe deviates due to the magnetic force effect of the magnetic shoe is avoided.

The utility model relates to the technical field of expansion valves, in particular to an electronic expansion valve. The electronic expansion valve comprises a mounting base, a valve body and a valve needle assembly. A mounting cavity is formed in the mounting seat, at least part of the valve body is arranged in the mounting cavity, the valve body is provided with a valve cavity and a valve port communicated with the valve cavity, and the valve needle assembly is movably arranged in the valve cavity so as to open or close the valve port. The valve body comprises a first valve body, the first valve body comprises a guide section, the inner wall of at least part of the guide section and the outer wall, opposite to the guide section, of the first valve body are of an integrated structure, and the outer side wall of the valve needle assembly and the inner wall of the guide section make direct contact and are in guide fit. Wherein a throttling section is arranged at the end, close to the valve port, of the valve needle assembly, and when the electronic expansion valve is in a throttling mode, at least part of the throttling section stretches into the valve port and is matched with the valve port so as to adjust the flow of the valve port. According to the electronic expansion valve and the air conditioning system, the problem that when a valve port of an existing electronic expansion valve is large, the flow adjusting precision is prone to being insufficient is solved.

The utility model relates to a low total length 8M foresight optical lens, which is characterized in that an optical system of the lens is composed of a first lens, a second lens, a third lens, a fourth lens, a diaphragm, a fifth lens, a sixth lens and a seventh lens which are sequentially arranged from left to right along a light incident light path. The lenses are made of plastic and glass materials, the first lens, the second lens, the fourth lens, the fifth lens and the sixth lens are glass spherical lenses, the third lens and the seventh lens are plastic aspheric lenses, and the fifth lens and the sixth lens form a balsaming lens group. By reasonably distributing the focal power and the surface type of each lens, the central thickness of each lens, the distance between the lenses on the optical axis and the like, the total length of the lens and the radial size of each lens are reduced while the requirements of a front-view wide-angle camera and a front-view narrow-angle camera are replaced by the low-total-length 8M ultra-wide-angle imaging performance of the lens; and the lens group is miniaturized.

The invention discloses a miniature lens with a large target surface and a large aperture. Comprising a first lens with negative focal power, a second lens with positive focal power, a third lens with positive focal power, a fourth lens with negative focal power, a fifth lens with positive focal power, a sixth lens with negative focal power and a seventh lens with positive focal power which are sequentially arranged from an object side to an image side, the large-target-surface large-aperture miniature lens comprises a second lens with positive focal power, a third lens with negative focal power, an eighth lens with negative focal power and a ninth lens with positive focal power, and further comprises an aperture diaphragm which is located between the second lens and the third lens or located between the third lens and the fourth lens. And by reasonably setting the proportional relation of key parameters, the total optical length is within 30mm under the condition of ensuring a large aperture of at least F1.05 and a large target surface of IH6.5 mm, and the effect of a miniature lens is obtained.

The invention discloses a thin-wall multi-fin part integrated forming device and process, the thin-wall multi-fin part integrated forming device comprises a die holder, a lower die is arranged at the top of the die holder, a shape control die is embedded in the top end of the lower die, and an upper die is arranged at the top ends of the lower die and the shape control die; the power output end of the upper pressing mechanism is fixedly connected with a shape filling mold which is movably inserted into the lower mold, and the power output end of the secondary upper pressing mechanism is fixedly connected with an ejector rod which is movably inserted into the shape filling mold; the power output end of the downward pressing mechanism is fixedly connected with a male die movably inserted into the upper die, and the power output end of the secondary downward pressing mechanism is fixedly connected with a hole forming rod movably inserted into the male die. The integrated forming process of the whole forming process of local heating, upsetting, necking and back upsetting of a blank and overall forming, hole forming, cooling and demolding of a formed part can be achieved, the complete metal flow line of the thin-wall multi-fin part is kept, and local strengthening and efficient near-net forming of a fin area are achieved.

The invention belongs to the field of optical cables, and discloses a multi-unit lead-in optical cable with a compact structure, which is provided with at least one assembly body and a protective sleeve, each assembly body is formed by sequentially attaching a plurality of introduction units end to end and forms a structure with a cross section similar to a regular hexagon; the protective sleeve wraps the outmost assembly body, the inner wall of the protective sleeve is matched with the outer edge of the outmost assembly body in shape, and the cross section of the outer edge of the protective sleeve is circular or regular hexagonal; the number of the introduction units in each assembly body is 3n, the layer number of the assembly body at the outermost layer is n, the layer number of the assembly body at the innermost layer is 1, and the like, and n is a positive integer not less than 1. The invention has the following main technical effects: the structure is more compact, the assembly is more convenient and quicker, the space utilization rate is higher, the density of the introduction units is higher, and the device is more suitable for occasions such as a data center and the like which need to access a large number of introduction units.

The invention discloses a robot tail end passive quick-change device, which comprises a quick-change robot end, a quick-change tool end, a quick-change tool end and a locking conical surface, a plurality of steel balls matched with the locking conical surface are arranged at the top of the quick-change tool end, a movable space allowing the piston to move up and down is formed in the quick-change tool end, a spring is arranged in the movable space, the piston is sleeved with the spring, and when the piston controls the steel balls to move outwards and abut against the locking conical surface, the locking conical surface abuts against the locking conical surface. The spring applies longitudinal locking force to the piston so that the quick-change robot end and the quick-change tool end can be locked. And the push rod components are located on the two sides of the quick-change tool end correspondingly, the ends of the push rod components can stretch into the moving space, and the push rod components are used for pushing the piston to move upwards so that the quick-change robot end and the quick-change tool end can be unlocked.

The invention belongs to the technical field of acoustic signal transmission, and particularly relates to a preparation method of an underwater sound source based on cross-water and cross-air metasurface packaging, and the method comprises the steps: obtaining a waterproof cavity with a cross-water and cross-air metasurface through the target frequency range of the underwater sound source and the boundary dimension optimization of an underwater sound source element; one or more air loudspeakers are packaged in a waterproof cavity to be assembled into an underwater sound source element, and a plurality of underwater sound source elements are arrayed according to the requirement of transmitting underwater sound beams. The underwater sound source prepared by the invention has a certain broadband characteristic and adjustable directivity, and can realize cross-medium sound wave transmission more efficiently. In addition, the invention also discloses an underwater sound source based on cross-water-air super-structure surface packaging.

The oil-gas separation assembly comprises a separation shell, a closure baffle and an exhaust pipe, the separation shell comprises an oil discharge outlet and an air inlet, an included angle is formed between the air inlet and a first air outlet, a second air outlet is formed in the first end of the exhaust pipe, and the separation shell is provided with the oil discharge outlet; the cut-off baffle is sleeved on the exhaust pipe; on the horizontal projection, the second end of the exhaust pipe at least covers the end, close to the second air outlet, of the air inlet, and the end, close to the air inlet, of the closure baffle is located between the second air outlet and the air inlet. The oil-gas separation assembly can simply and efficiently achieve separation of oil and gas, the oil discharge rate of the compressor is reduced, loss of refrigeration oil of the compressor is avoided, and the reliability of the compressor is improved. The oil-gas separation assembly is simple in overall structure, convenient to assemble and low in cost, and the problem that the oil discharge rate of an existing scroll compressor is continuously increased can be solved under the condition that the manufacturing cost is not additionally increased.

The pneumatic pulse valve body assembly is arranged between an air source body and an air using assembly of the massage system and comprises a first valve body and a second valve body which are arranged in a combined mode and are different in switching frequency, and the switching frequency of the first valve body is larger than that of the second valve body; the number of the first valve body is at least one, the first valve body comprises a first air inlet end and a first air outlet end, and the first air inlet end is communicated with the air source body; the second valve body comprises a second air inlet end and an air inflation end, the air inflation end is communicated with the air using assembly, and the second air inlet end is communicated with the first exhaust end; when the air source body inflates the air using assembly, the first valve body executes high-frequency and rapid opening and closing actions to control the state of air flow introduced into the second valve body, the air flow is controlled and then inflates the air using assembly in a pulsating mode through the second valve body, an air bag is jacked up step by step, and the air bag is inflated into the air using assembly in a pulsating mode. Therefore, richer massage experience feeling is brought to passengers.

The utility model discloses a tower top tool of a wind power mixing tower, which comprises a steel cable, a tower drum, a support and a fixing part, the tower drum is in a hollow cylinder shape, first cable penetrating holes are arranged on the circumferential surface close to the inner wall of the tower drum at equal angles, embedded bolts are arranged on the circumferential surface close to the outer wall of the tower drum at equal angles, and a saddle-shaped connecting block is arranged at the bottom of the support. The support is fixedly connected with the tower drum through the connecting block, the fixing part is arranged in the center of the tower drum and fixedly connected with the tower drum, and a hoisting pulley is arranged in the center of the fixing part.

The invention discloses a battery cell grouping structure, a battery pack and a vehicle, and belongs to the technical field of batteries. The battery cell grouping structure comprises: a battery cell group, which comprises a plurality of battery cells stacked in sequence; a heat insulation plate, wherein the heat insulation plate is arranged between two adjacent battery cells; the end plate is arranged at the end part of the battery cell group in the stacking direction, and one side, deviating from the battery cell group, of the end plate is used for abutting against a box body of the battery pack; the insulating plate covers the end face, provided with the pole columns, of the battery cell group, an FPC board, a plurality of bars and a plurality of temperature sensors are arranged on the insulating plate, the FPC board is connected with the multiple battery cells, the pole columns of every two adjacent battery cells are connected through the bars, and the temperature sensors are arranged in the circumferential direction of the insulating plate at intervals and connected with the corresponding battery cells. The end plate is arranged to be matched with the box body to clamp the battery cell group, and the FPC board, the chip and the temperature sensor are all integrated on the insulating plate, so that the safety is high, the assembly is simple and convenient, the occupied space is small, the lightweight design is met, the structure is simple, and the integration level is high.

The invention relates to the technical field of clothes processing equipment, in particular to a heat pump washing and drying integrated machine. The problem that an existing heat pump washing and drying all-in-one machine is poor in drying efficiency is solved. Therefore, the heat pump washing and drying all-in-one machine comprises a barrel module and a heat pump module, the heat pump module comprises a first drying air duct, a fan and a second drying air duct which are connected in sequence, an evaporator is arranged in the second drying air duct, and a condenser is arranged in the first drying air duct; a fresh air inlet is formed in the second drying air channel and located between the evaporator and the draught fan. The fresh air inlet is formed in the second drying air duct, in the process of executing the drying program, external dry fresh air can be introduced, the drying efficiency can be improved, in addition, the fresh air inlet is formed between the evaporator and the fan, more fresh air can be introduced, and the drying efficiency is improved. And the temperature of the entering fresh air is not affected by the temperature of the evaporator, and the drying efficiency can be better improved.

The utility model discloses a relay which comprises an insulating cover, a pair of static contacts, a movable assembly and an anti-rotation structure. The pair of static contacts is connected to the insulating cover; the movable assembly comprises a push rod component and a movable contact assembly, and the push rod component is used for driving the movable contact assembly to move so as to be in contact with or separated from the pair of static contacts; the anti-rotation structure is used for limiting rotation of the push rod component around the axis of the push rod component and limiting rotation of the movable contact assembly around the axis of the push rod component.

The invention relates to a magnetic latching relay and an assembling method thereof. The magnetic latching relay comprises an armature assembly, the armature assembly comprises a shell and a permanent magnet arranged in the shell, the armature assembly further comprises a limiting structure, the limiting structure comprises a connecting part and a limiting part, the connecting part is connected to the shell, and the limiting part is connected to the end, away from the shell, of the connecting part; the auxiliary movable spring part is provided with a through hole, at least part of the connecting part is located in the through hole, and the limiting part is located on the side, opposite to the shell, of the auxiliary movable spring part so as to limit the auxiliary movable spring part on the shell. According to the magnetic latching relay, the assembly process of the auxiliary movable spring part is simplified, and the assembly difficulty and the preparation cost are reduced.

The invention belongs to the technical field of gas cylinder accessories, and particularly relates to an IV-type gas cylinder hoop and a fixing device. The device comprises a gas cylinder bandage, a radial expansion mechanism, a support, a gas cylinder support guide mechanism, a sliding base and a plurality of diameter compensation mechanisms with different thicknesses. The radial expansion mechanism is composed of a radial expansion guider I, a radial expansion compensator, a radial expansion guider II and a bandage locking nut from top to bottom, and the radial expansion compensator is a spring; a sliding groove is formed in the support. The two tail ends of the gas cylinder bandage penetrate through the corresponding sliding grooves through welded studs and are screwed to be installed on the support together with the radial expansion mechanism. The device is easy to assemble, high in efficiency, good in product interchangeability and consistency, and capable of absorbing the swelling amount of the gas cylinder in the diameter direction and the length direction due to the modular and lightweight design.

The invention discloses a handle-locked two-core single-ended waterproof high-voltage connector, which is provided with a handle arranged outside a head shell assembly and used for connecting a plug and a socket, the socket comprises a socket shell, and a socket shielding cover, jacks, a socket outer sealing ring, a socket inner sealing ring, a signal pin assembly and the like which are arranged in the socket shell; through multi-stage waterproof, the socket can independently seal water vapor when the plug and the socket are not plugged in each other. According to the invention, the plug and the socket are plugged and fixed in a quick handle locking manner, so that the reliability of plugging and fixing of the plug and the socket is ensured; the connector socket has an independent waterproof function, and can protect a plate end from water vapor entering to cause damage to a device under a special working condition; a multi-lip sealing ring is adopted for waterproof sealing, and compared with a conventional O-shaped sealing ring for single-layer protection, the structure is more reliable, and good sealing performance and anti-aging performance are achieved; and through a shielding conduction structure, the whole connector has good electromagnetic shielding effectiveness and mechanical strength.

The utility model relates to a foresight ultra-wide-angle binocular camera. An optical system of the camera is composed of a first lens, a second lens, a third lens, a diaphragm, a fourth lens, a fifth lens and a sixth lens which are sequentially arranged from left to right along a light incident light path. Under the condition that retroflexion caused by aspheric coefficients is not considered, the first lens is a meniscus concave negative lens, the second lens is a meniscus concave positive lens, the third lens is a meniscus convex positive lens, the fourth lens is a biconvex positive lens, the fifth lens is a meniscus concave negative lens, the sixth lens is a meniscus convex positive lens, and all the lenses are made of glass materials. Wherein the first lens and the sixth lens are glass aspheric lenses, and the fourth lens and the fifth lens form a balsaming lens group. While the wide-angle 120-degree clear imaging is realized, the wide-angle 120-degree wide-angle imaging lens has a relatively small appearance size and relatively high environmental stability.